Massive neutrinos and primordial nucleosynthesis
Journal Article
·
· Phys. Rev. D; (United States)
The effect of massive (m> or =0.1 MeV) neutrinos on primordial nucleosynthesis is calculated. It is shown that the effect on big-bang helium (deuterium) production of a 0.1--10 MeV (0.1--15 MeV) neutrino is more significant than the effect of a massless neutrino. If a lower bound on the present baryon-to-photon ratio is placed from determination of the virial mass in binaries and small groups of galaxies (where massive neutrinos are not expected to contribute to the virial mass) or from the requirement that big-bang nucleosynthesis not overproduce /sup 2/H, then limits may be placed on the masses of any neutrinos present at nucleosynthesis.
- Research Organization:
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
- OSTI ID:
- 5652284
- Journal Information:
- Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 25:6; ISSN PRVDA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
640106* -- Astrophysics & Cosmology-- Cosmology
645203 -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Weak Interactions & Properties
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COSMOLOGICAL MODELS
DEUTERIUM
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
FLUIDS
GASES
HELIUM
HYDROGEN ISOTOPES
ISOTOPES
LEPTONS
LIGHT NUCLEI
LIMITING VALUES
MASS
MASSLESS PARTICLES
MATHEMATICAL MODELS
NEUTRINOS
NONMETALS
NUCLEI
NUCLEOSYNTHESIS
ODD-ODD NUCLEI
RARE GASES
STABLE ISOTOPES
645203 -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Weak Interactions & Properties
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COSMOLOGICAL MODELS
DEUTERIUM
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
FLUIDS
GASES
HELIUM
HYDROGEN ISOTOPES
ISOTOPES
LEPTONS
LIGHT NUCLEI
LIMITING VALUES
MASS
MASSLESS PARTICLES
MATHEMATICAL MODELS
NEUTRINOS
NONMETALS
NUCLEI
NUCLEOSYNTHESIS
ODD-ODD NUCLEI
RARE GASES
STABLE ISOTOPES